<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>11_Promise相关面试题5</title>
</head>
<body>

  <script>
    async function async1() {
      console.log('async1 start')
      await async2()
      console.log('async1 end')
    }

    async function async2() {
      console.log('async2')
    }

    console.log('script start')

    setTimeout(() => {
      console.log('setTimeout')
    }, 0)

    async1()
    
    new Promise(function (resolve) {
      console.log('promise1')
      resolve()
    }).then(function () {
      console.log('promise2')
    })
    console.log('script end')

    /* 
    输出: 
      script start
      async1 start
      async2
      promise1
      script end
      async1 end
      promise2
      setTimeout
     */
  </script>

</body>
</html>